He says the more relevant precedent is United States v Morison, when the defendant was convicted for leaking photographs of Sovietnaval construction to a British magazine.
Unfortunately, Soviet efforts to constrain U.S. naval capabilities, in general, and American SLCMs, in particular, play well in certain Western quarters.
First, as a maritime power we and our allies and friends are critically dependent on naval forces to a measure far beyond that of a land-power like the Soviet Union.
For one thing, the United States would be mad to permit Soviet intelligence into its facilities involved in one of the few remaining areas of militarily decisive technological advantage: naval nuclear propulsion.